文献类型：期刊文献

英文题名：Band Structure Research of a 2D Honeycomb Lattice Phononic Crystal

作者：Gao, Zongyu[1,2];Fang, Jianjun[1];Zhang, Yinong[1];Jiang, Lang[1]

第一作者：高宗余;Gao, Zongyu

通讯作者：Gao, ZY[1]

机构：[1]Beijing Union Univ, Coll Automat, Beijing 100101, Peoples R China;[2]Beijing Jiaotong Univ, Sch Elect Engn, Beijing 100044, Peoples R China

第一机构：北京联合大学城市轨道交通与物流学院

通讯机构：[1]corresponding author), Beijing Union Univ, Coll Automat, Beijing 100101, Peoples R China.|[1141751]北京联合大学城市轨道交通与物流学院;[11417]北京联合大学;

年份：2013

卷号：8

期号：6

起止页码：7918-7925

外文期刊名：INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE

收录：;Scopus(收录号：2-s2.0-84878975205);WOS:【SCI-EXPANDED(收录号:WOS:000323546100037)】；

基金：The authors acknowledge the ministry of science and technology of china for its financial support to the subject, the work was supported by the national natural science funds item of China (Grant no.6872c260)

语种：英文

外文关键词：Phononic crystal; Band gap; Plane wave expansion method

摘要：Using ultrasonic immersion transmission technique, the band gap properties of a two-dimensional honeycomb lattice/water phononic crystal were investigated both theoretically and experimentally. The band structure was calculated with the plane wave expansion (PWE) method. The results revealed that the crystals exist low frequency band gap and the frequency range of the first compete band gap is accordance with the theoretical calculation. The band degeneracy at high symmetry point in the first Brillouin zone was lifted due to increase Filling Fraction, and hence a new low-frequency absolute band gap between the first and the second bands appeared. With the normalization radii(r(0)/a) increase that the first band gap relative broadband of the honeycomb array of steel cylinders in water is monotonic increase and open band gap in (r(0)/a) = 0.21. The measured transmission spectra were found to be in good agreement with the numerical results.